DELTA 1 DEB, 21275

Orbit data source: Space-Track

DELTA 1 DEB, 21275 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 UTC launched from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.

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Iframe URL

https://www.satcat.com/sats-embedded/21275?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

21275, 1975-052L

Orbit

SSO

Country

Related business

National Aeronautics and Space Administration (NASA) (US)

Manufacturer

Unknown

Mission

Spacecraft

Bus & Motor

Unknown

Mass

Unknown

Launch date (UTC)

1975-06-12 (51 years ago)

Launch vehicle

Unknown

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown shape, 0.2 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 10 hours ago

TLE from 10 hours ago

0 DELTA 1 DEB
1 21275U 75052L   26191.21950644  .00000014  00000-0  89211-4 0  9996
2 21275  99.8717  98.7562 0034306 120.2080  33.5746 13.51910231735386

Epoch: 2026-07-10T05:16Z

TLE epoch observation values (Epoch: 2026-07-10T05:16:05.356Z)

Latitude

25.61827°

Longitude

-83.65451°

Altitude

1,046.976 km

Speed

7.341 km/s

True Right ascension

18h 54m 04s

True Declination

25° 29' 23"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

03:51:22

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,088.072 km

Perigee altitude

1,037.02 km

Semi-major axis

7,440.683 km

Eccentricity

0.00343

Inclination

99.8717°

RAAN

98.7562°

Arg. of periapsis

120.208°

True anomaly

33.79278°

Mean anomaly

33.5746°

Eccentric anomaly

33.68361°

Mean motion

3.38161 °/min

Orbital period

106.46 mins

BSTAR

0.000089211

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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB, 21327

DELTA 1 DEB, 21284

DELTA 1 DEB, 21449 (Decayed)

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DELTA 1 DEB Visibility forecast

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Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
11 mins	2026-07-10 17:03:32.626Z	137.521° SSE	2026-07-10 17:09:32.626Z	64.959° ENE	35.819°	2026-07-10 17:14:32.626Z	0.481° NNE
9 mins	2026-07-10 18:50:32.626Z	214.897° SW	2026-07-10 18:54:32.626Z	263.786° W	25.978°	2026-07-10 18:59:32.626Z	319.802° NNW
9 mins	2026-07-11 06:00:32.626Z	43.643° NE	2026-07-11 06:04:32.626Z	101.399° ESE	30.59°	2026-07-11 06:09:32.626Z	160.449° S
9 mins	2026-07-11 07:45:32.626Z	347.927° N	2026-07-11 07:49:32.626Z	289.531° WNW	30.848°	2026-07-11 07:54:32.626Z	232.549° WSW

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Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out DELTA 1 DEB, 21275 on other resources

View DELTA 1 DEB, 21275 on Heavens-Above

View DELTA 1 DEB, 21275 on Keep Track

View DELTA 1 DEB, 21275 on Celestrak

View DELTA 1 DEB, 21275 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

DELTA 1 DEB, 21275

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 10 hours ago

TLE from 10 hours ago

TLE epoch observation values (Epoch: 2026-07-10T05:16:05.356Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)

DELTA 1 DEB Visibility forecast

Co-orbital & Co-planar RSOs

Check out DELTA 1 DEB, 21275 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 10 hours ago